SriLankan Airlines is to take delivery of new aircraft for the first time in more than a decade from August next year.
Delivered over an 18-24 month period, 10 new aircraft will join the fleet, flying routes to Europe and Asia.
Alongside six A330-300s, the airline has ordered four of the latest generations A350-900s. The new aircraft will increase seat capacity by 10-12%.
The airline will launch a route to the Seychelles from November 16, and chairman Nishantha Wickremasinghe said he hoped to move to daily flights on routes including Frankfurt, Paris and Rome over the next 18 months.
SriLankan Airlines is also set to join the Oneworld alliance in March or April 2014.